Answer: it is involuntary, the process is called digestion.
Explanation:
It is either carcinogens or viruses (I think the first) I hope this helps!
An organism's trophic level refers to the food chain position that it occupies. Producers always occupy the Trophy level 1, Primary Consumer occupies the Trophy level 2, Secondary Consumer has the Trophy level 3 and the Tertiary level fills in the Trophy level 4.
